Home / 1,532.92-2,115.90-1,140.48

Finding the Fourth Proportional to 1,532.92, 2,115.90 and 1,140.48

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Solution

The fourth proportional to 1,532.92, 2,115.90 and 1,140.48 is: 1,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.92 : 2,115.90 = 1,140.48 : x
  2. Step 2: Convert to fraction form
    1,532.92/2,115.90 = 1,140.48/x
  3. Step 3: Cross multiply
    1,532.92x = 2,115.90 × 1,140.48
  4. Step 4: Simplify right side
    1,532.92x = 2,413,141.63
  5. Step 5: Solve for x
    x = 2,413,141.63/1,532.92
  6. Step 6: Final answer
    x = 1,574.21

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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.