Home / 7,148.08-9,864.44-4,122.50

Finding the Fourth Proportional to 7,148.08, 9,864.44 and 4,122.50

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Solution

The fourth proportional to 7,148.08, 9,864.44 and 4,122.50 is: 5,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.08 : 9,864.44 = 4,122.50 : x
  2. Step 2: Convert to fraction form
    7,148.08/9,864.44 = 4,122.50/x
  3. Step 3: Cross multiply
    7,148.08x = 9,864.44 × 4,122.50
  4. Step 4: Simplify right side
    7,148.08x = 40,666,153.90
  5. Step 5: Solve for x
    x = 40,666,153.90/7,148.08
  6. Step 6: Final answer
    x = 5,689.10

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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.