Home / 1,411.52-2,106.90-1,312.48

Finding the Fourth Proportional to 1,411.52, 2,106.90 and 1,312.48

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Solution

The fourth proportional to 1,411.52, 2,106.90 and 1,312.48 is: 1,959.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.52 : 2,106.90 = 1,312.48 : x
  2. Step 2: Convert to fraction form
    1,411.52/2,106.90 = 1,312.48/x
  3. Step 3: Cross multiply
    1,411.52x = 2,106.90 × 1,312.48
  4. Step 4: Simplify right side
    1,411.52x = 2,765,264.11
  5. Step 5: Solve for x
    x = 2,765,264.11/1,411.52
  6. Step 6: Final answer
    x = 1,959.07

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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.