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Finding the Fourth Proportional to 4,725, 7,095.60 and 4,478.76

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Solution

The fourth proportional to 4,725, 7,095.60 and 4,478.76 is: 6,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725 : 7,095.60 = 4,478.76 : x
  2. Step 2: Convert to fraction form
    4,725/7,095.60 = 4,478.76/x
  3. Step 3: Cross multiply
    4,725x = 7,095.60 × 4,478.76
  4. Step 4: Simplify right side
    4,725x = 31,779,489.46
  5. Step 5: Solve for x
    x = 31,779,489.46/4,725
  6. Step 6: Final answer
    x = 6,725.82

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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.