Home / 1,526.12-2,106.18-928.56

Finding the Fourth Proportional to 1,526.12, 2,106.18 and 928.56

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Solution

The fourth proportional to 1,526.12, 2,106.18 and 928.56 is: 1,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.12 : 2,106.18 = 928.56 : x
  2. Step 2: Convert to fraction form
    1,526.12/2,106.18 = 928.56/x
  3. Step 3: Cross multiply
    1,526.12x = 2,106.18 × 928.56
  4. Step 4: Simplify right side
    1,526.12x = 1,955,725.66
  5. Step 5: Solve for x
    x = 1,955,725.66/1,526.12
  6. Step 6: Final answer
    x = 1,281.51

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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.