Home / 1,478.17-2,039.46-848.66

Finding the Fourth Proportional to 1,478.17, 2,039.46 and 848.66

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Solution

The fourth proportional to 1,478.17, 2,039.46 and 848.66 is: 1,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.17 : 2,039.46 = 848.66 : x
  2. Step 2: Convert to fraction form
    1,478.17/2,039.46 = 848.66/x
  3. Step 3: Cross multiply
    1,478.17x = 2,039.46 × 848.66
  4. Step 4: Simplify right side
    1,478.17x = 1,730,808.12
  5. Step 5: Solve for x
    x = 1,730,808.12/1,478.17
  6. Step 6: Final answer
    x = 1,170.92

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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.