Home / 1,525.38-2,288.50-485.67

Finding the Fourth Proportional to 1,525.38, 2,288.50 and 485.67

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Solution

The fourth proportional to 1,525.38, 2,288.50 and 485.67 is: 728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.38 : 2,288.50 = 485.67 : x
  2. Step 2: Convert to fraction form
    1,525.38/2,288.50 = 485.67/x
  3. Step 3: Cross multiply
    1,525.38x = 2,288.50 × 485.67
  4. Step 4: Simplify right side
    1,525.38x = 1,111,455.80
  5. Step 5: Solve for x
    x = 1,111,455.80/1,525.38
  6. Step 6: Final answer
    x = 728.64

Related Problems

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Half scale
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Double scale
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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.