Home / 5,218.47-7,864.40-4,699.06

Finding the Fourth Proportional to 5,218.47, 7,864.40 and 4,699.06

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Solution

The fourth proportional to 5,218.47, 7,864.40 and 4,699.06 is: 7,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.47 : 7,864.40 = 4,699.06 : x
  2. Step 2: Convert to fraction form
    5,218.47/7,864.40 = 4,699.06/x
  3. Step 3: Cross multiply
    5,218.47x = 7,864.40 × 4,699.06
  4. Step 4: Simplify right side
    5,218.47x = 36,955,263.97
  5. Step 5: Solve for x
    x = 36,955,263.97/5,218.47
  6. Step 6: Final answer
    x = 7,081.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.