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Finding the Fourth Proportional to 7,124.52, 9,818.88 and 4,730.28

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Solution

The fourth proportional to 7,124.52, 9,818.88 and 4,730.28 is: 6,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.52 : 9,818.88 = 4,730.28 : x
  2. Step 2: Convert to fraction form
    7,124.52/9,818.88 = 4,730.28/x
  3. Step 3: Cross multiply
    7,124.52x = 9,818.88 × 4,730.28
  4. Step 4: Simplify right side
    7,124.52x = 46,446,051.69
  5. Step 5: Solve for x
    x = 46,446,051.69/7,124.52
  6. Step 6: Final answer
    x = 6,519.18

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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.