Home / 1,154.44-1,731.65-288.75

Finding the Fourth Proportional to 1,154.44, 1,731.65 and 288.75

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Solution

The fourth proportional to 1,154.44, 1,731.65 and 288.75 is: 433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.44 : 1,731.65 = 288.75 : x
  2. Step 2: Convert to fraction form
    1,154.44/1,731.65 = 288.75/x
  3. Step 3: Cross multiply
    1,154.44x = 1,731.65 × 288.75
  4. Step 4: Simplify right side
    1,154.44x = 500,013.58
  5. Step 5: Solve for x
    x = 500,013.58/1,154.44
  6. Step 6: Final answer
    x = 433.12

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,155.44, 1,733.15 and 289.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.