Home / 1,534.16-2,117.22-870.92

Finding the Fourth Proportional to 1,534.16, 2,117.22 and 870.92

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Solution

The fourth proportional to 1,534.16, 2,117.22 and 870.92 is: 1,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.16 : 2,117.22 = 870.92 : x
  2. Step 2: Convert to fraction form
    1,534.16/2,117.22 = 870.92/x
  3. Step 3: Cross multiply
    1,534.16x = 2,117.22 × 870.92
  4. Step 4: Simplify right side
    1,534.16x = 1,843,929.24
  5. Step 5: Solve for x
    x = 1,843,929.24/1,534.16
  6. Step 6: Final answer
    x = 1,201.91

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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.