Home / 7,545.04-10,412.78-4,188.20

Finding the Fourth Proportional to 7,545.04, 10,412.78 and 4,188.20

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Solution

The fourth proportional to 7,545.04, 10,412.78 and 4,188.20 is: 5,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.04 : 10,412.78 = 4,188.20 : x
  2. Step 2: Convert to fraction form
    7,545.04/10,412.78 = 4,188.20/x
  3. Step 3: Cross multiply
    7,545.04x = 10,412.78 × 4,188.20
  4. Step 4: Simplify right side
    7,545.04x = 43,610,732.19
  5. Step 5: Solve for x
    x = 43,610,732.19/7,545.04
  6. Step 6: Final answer
    x = 5,780.06

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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.