Home / 1,479.18-2,041.19-816.10

Finding the Fourth Proportional to 1,479.18, 2,041.19 and 816.10

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Solution

The fourth proportional to 1,479.18, 2,041.19 and 816.10 is: 1,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.18 : 2,041.19 = 816.10 : x
  2. Step 2: Convert to fraction form
    1,479.18/2,041.19 = 816.10/x
  3. Step 3: Cross multiply
    1,479.18x = 2,041.19 × 816.10
  4. Step 4: Simplify right side
    1,479.18x = 1,665,805.98
  5. Step 5: Solve for x
    x = 1,665,805.98/1,479.18
  6. Step 6: Final answer
    x = 1,126.17

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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.