Home / 1,535.02-2,302.14-439.40

Finding the Fourth Proportional to 1,535.02, 2,302.14 and 439.40

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Solution

The fourth proportional to 1,535.02, 2,302.14 and 439.40 is: 658.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.02 : 2,302.14 = 439.40 : x
  2. Step 2: Convert to fraction form
    1,535.02/2,302.14 = 439.40/x
  3. Step 3: Cross multiply
    1,535.02x = 2,302.14 × 439.40
  4. Step 4: Simplify right side
    1,535.02x = 1,011,560.32
  5. Step 5: Solve for x
    x = 1,011,560.32/1,535.02
  6. Step 6: Final answer
    x = 658.99

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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.