Home / 1,518.47-2,095.03-928.39

Finding the Fourth Proportional to 1,518.47, 2,095.03 and 928.39

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Solution

The fourth proportional to 1,518.47, 2,095.03 and 928.39 is: 1,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.47 : 2,095.03 = 928.39 : x
  2. Step 2: Convert to fraction form
    1,518.47/2,095.03 = 928.39/x
  3. Step 3: Cross multiply
    1,518.47x = 2,095.03 × 928.39
  4. Step 4: Simplify right side
    1,518.47x = 1,945,004.90
  5. Step 5: Solve for x
    x = 1,945,004.90/1,518.47
  6. Step 6: Final answer
    x = 1,280.90

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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.