Home / 3,479.04-4,802.40-2,689.92

Finding the Fourth Proportional to 3,479.04, 4,802.40 and 2,689.92

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Solution

The fourth proportional to 3,479.04, 4,802.40 and 2,689.92 is: 3,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.04 : 4,802.40 = 2,689.92 : x
  2. Step 2: Convert to fraction form
    3,479.04/4,802.40 = 2,689.92/x
  3. Step 3: Cross multiply
    3,479.04x = 4,802.40 × 2,689.92
  4. Step 4: Simplify right side
    3,479.04x = 12,918,071.81
  5. Step 5: Solve for x
    x = 12,918,071.81/3,479.04
  6. Step 6: Final answer
    x = 3,713.11

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1.5x scale

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.