Home / 7,124.81-10,688.56-2,962.55

Finding the Fourth Proportional to 7,124.81, 10,688.56 and 2,962.55

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Solution

The fourth proportional to 7,124.81, 10,688.56 and 2,962.55 is: 4,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.81 : 10,688.56 = 2,962.55 : x
  2. Step 2: Convert to fraction form
    7,124.81/10,688.56 = 2,962.55/x
  3. Step 3: Cross multiply
    7,124.81x = 10,688.56 × 2,962.55
  4. Step 4: Simplify right side
    7,124.81x = 31,665,412.74
  5. Step 5: Solve for x
    x = 31,665,412.74/7,124.81
  6. Step 6: Final answer
    x = 4,444.39

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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.