Home / 1,680.18-2,318.76-1,017.06

Finding the Fourth Proportional to 1,680.18, 2,318.76 and 1,017.06

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Solution

The fourth proportional to 1,680.18, 2,318.76 and 1,017.06 is: 1,403.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.18 : 2,318.76 = 1,017.06 : x
  2. Step 2: Convert to fraction form
    1,680.18/2,318.76 = 1,017.06/x
  3. Step 3: Cross multiply
    1,680.18x = 2,318.76 × 1,017.06
  4. Step 4: Simplify right side
    1,680.18x = 2,358,318.05
  5. Step 5: Solve for x
    x = 2,358,318.05/1,680.18
  6. Step 6: Final answer
    x = 1,403.61

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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.