Home / 7,089.18-10,636.38-2,929.55

Finding the Fourth Proportional to 7,089.18, 10,636.38 and 2,929.55

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Solution

The fourth proportional to 7,089.18, 10,636.38 and 2,929.55 is: 4,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.18 : 10,636.38 = 2,929.55 : x
  2. Step 2: Convert to fraction form
    7,089.18/10,636.38 = 2,929.55/x
  3. Step 3: Cross multiply
    7,089.18x = 10,636.38 × 2,929.55
  4. Step 4: Simplify right side
    7,089.18x = 31,159,753.85
  5. Step 5: Solve for x
    x = 31,159,753.85/7,089.18
  6. Step 6: Final answer
    x = 4,395.40

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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.