Home / 2,485.28-3,727.51-753.50

Finding the Fourth Proportional to 2,485.28, 3,727.51 and 753.50

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Solution

The fourth proportional to 2,485.28, 3,727.51 and 753.50 is: 1,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.28 : 3,727.51 = 753.50 : x
  2. Step 2: Convert to fraction form
    2,485.28/3,727.51 = 753.50/x
  3. Step 3: Cross multiply
    2,485.28x = 3,727.51 × 753.50
  4. Step 4: Simplify right side
    2,485.28x = 2,808,678.79
  5. Step 5: Solve for x
    x = 2,808,678.79/2,485.28
  6. Step 6: Final answer
    x = 1,130.13

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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.