Home / 2,680.47-4,017.59-1,585.76

Finding the Fourth Proportional to 2,680.47, 4,017.59 and 1,585.76

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Solution

The fourth proportional to 2,680.47, 4,017.59 and 1,585.76 is: 2,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.47 : 4,017.59 = 1,585.76 : x
  2. Step 2: Convert to fraction form
    2,680.47/4,017.59 = 1,585.76/x
  3. Step 3: Cross multiply
    2,680.47x = 4,017.59 × 1,585.76
  4. Step 4: Simplify right side
    2,680.47x = 6,370,913.43
  5. Step 5: Solve for x
    x = 6,370,913.43/2,680.47
  6. Step 6: Final answer
    x = 2,376.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.