Home / 1,130.20-1,559.57-632.75

Finding the Fourth Proportional to 1,130.20, 1,559.57 and 632.75

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Solution

The fourth proportional to 1,130.20, 1,559.57 and 632.75 is: 873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.20 : 1,559.57 = 632.75 : x
  2. Step 2: Convert to fraction form
    1,130.20/1,559.57 = 632.75/x
  3. Step 3: Cross multiply
    1,130.20x = 1,559.57 × 632.75
  4. Step 4: Simplify right side
    1,130.20x = 986,823.40
  5. Step 5: Solve for x
    x = 986,823.40/1,130.20
  6. Step 6: Final answer
    x = 873.14

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.