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Finding the Fourth Proportional to 4,985.42, 7,476.30 and 1,697.63

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Solution

The fourth proportional to 4,985.42, 7,476.30 and 1,697.63 is: 2,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.42 : 7,476.30 = 1,697.63 : x
  2. Step 2: Convert to fraction form
    4,985.42/7,476.30 = 1,697.63/x
  3. Step 3: Cross multiply
    4,985.42x = 7,476.30 × 1,697.63
  4. Step 4: Simplify right side
    4,985.42x = 12,691,953.79
  5. Step 5: Solve for x
    x = 12,691,953.79/4,985.42
  6. Step 6: Final answer
    x = 2,545.82

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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.