Home / 1,656.19-2,479.42-1,307.08

Finding the Fourth Proportional to 1,656.19, 2,479.42 and 1,307.08

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Solution

The fourth proportional to 1,656.19, 2,479.42 and 1,307.08 is: 1,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.19 : 2,479.42 = 1,307.08 : x
  2. Step 2: Convert to fraction form
    1,656.19/2,479.42 = 1,307.08/x
  3. Step 3: Cross multiply
    1,656.19x = 2,479.42 × 1,307.08
  4. Step 4: Simplify right side
    1,656.19x = 3,240,800.29
  5. Step 5: Solve for x
    x = 3,240,800.29/1,656.19
  6. Step 6: Final answer
    x = 1,956.78

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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.