Home / 4,810.61-7,215.01-1,689.89

Finding the Fourth Proportional to 4,810.61, 7,215.01 and 1,689.89

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Solution

The fourth proportional to 4,810.61, 7,215.01 and 1,689.89 is: 2,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.61 : 7,215.01 = 1,689.89 : x
  2. Step 2: Convert to fraction form
    4,810.61/7,215.01 = 1,689.89/x
  3. Step 3: Cross multiply
    4,810.61x = 7,215.01 × 1,689.89
  4. Step 4: Simplify right side
    4,810.61x = 12,192,532.95
  5. Step 5: Solve for x
    x = 12,192,532.95/4,810.61
  6. Step 6: Final answer
    x = 2,534.51

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Double scale
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Similar ratio
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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.