Home / 5,005.52-7,509.40-1,543.12

Finding the Fourth Proportional to 5,005.52, 7,509.40 and 1,543.12

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Solution

The fourth proportional to 5,005.52, 7,509.40 and 1,543.12 is: 2,315.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.52 : 7,509.40 = 1,543.12 : x
  2. Step 2: Convert to fraction form
    5,005.52/7,509.40 = 1,543.12/x
  3. Step 3: Cross multiply
    5,005.52x = 7,509.40 × 1,543.12
  4. Step 4: Simplify right side
    5,005.52x = 11,587,905.33
  5. Step 5: Solve for x
    x = 11,587,905.33/5,005.52
  6. Step 6: Final answer
    x = 2,315.03

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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.