Home / 2,931.08-4,392.66-1,080.46

Finding the Fourth Proportional to 2,931.08, 4,392.66 and 1,080.46

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Solution

The fourth proportional to 2,931.08, 4,392.66 and 1,080.46 is: 1,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.08 : 4,392.66 = 1,080.46 : x
  2. Step 2: Convert to fraction form
    2,931.08/4,392.66 = 1,080.46/x
  3. Step 3: Cross multiply
    2,931.08x = 4,392.66 × 1,080.46
  4. Step 4: Simplify right side
    2,931.08x = 4,746,071.46
  5. Step 5: Solve for x
    x = 4,746,071.46/2,931.08
  6. Step 6: Final answer
    x = 1,619.22

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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.