Home / 1,461.01-2,179.32-1,320.88

Finding the Fourth Proportional to 1,461.01, 2,179.32 and 1,320.88

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Solution

The fourth proportional to 1,461.01, 2,179.32 and 1,320.88 is: 1,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.01 : 2,179.32 = 1,320.88 : x
  2. Step 2: Convert to fraction form
    1,461.01/2,179.32 = 1,320.88/x
  3. Step 3: Cross multiply
    1,461.01x = 2,179.32 × 1,320.88
  4. Step 4: Simplify right side
    1,461.01x = 2,878,619.71
  5. Step 5: Solve for x
    x = 2,878,619.71/1,461.01
  6. Step 6: Final answer
    x = 1,970.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.