Home / 1,057.52-1,586.20-288.08

Finding the Fourth Proportional to 1,057.52, 1,586.20 and 288.08

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Solution

The fourth proportional to 1,057.52, 1,586.20 and 288.08 is: 432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.52 : 1,586.20 = 288.08 : x
  2. Step 2: Convert to fraction form
    1,057.52/1,586.20 = 288.08/x
  3. Step 3: Cross multiply
    1,057.52x = 1,586.20 × 288.08
  4. Step 4: Simplify right side
    1,057.52x = 456,952.50
  5. Step 5: Solve for x
    x = 456,952.50/1,057.52
  6. Step 6: Final answer
    x = 432.10

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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.