Home / 1,666.40-2,498.88-1,049.28

Finding the Fourth Proportional to 1,666.40, 2,498.88 and 1,049.28

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Solution

The fourth proportional to 1,666.40, 2,498.88 and 1,049.28 is: 1,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.40 : 2,498.88 = 1,049.28 : x
  2. Step 2: Convert to fraction form
    1,666.40/2,498.88 = 1,049.28/x
  3. Step 3: Cross multiply
    1,666.40x = 2,498.88 × 1,049.28
  4. Step 4: Simplify right side
    1,666.40x = 2,622,024.81
  5. Step 5: Solve for x
    x = 2,622,024.81/1,666.40
  6. Step 6: Final answer
    x = 1,573.47

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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.