Home / 3,141.60-4,335.28-1,815.08

Finding the Fourth Proportional to 3,141.60, 4,335.28 and 1,815.08

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Solution

The fourth proportional to 3,141.60, 4,335.28 and 1,815.08 is: 2,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.60 : 4,335.28 = 1,815.08 : x
  2. Step 2: Convert to fraction form
    3,141.60/4,335.28 = 1,815.08/x
  3. Step 3: Cross multiply
    3,141.60x = 4,335.28 × 1,815.08
  4. Step 4: Simplify right side
    3,141.60x = 7,868,880.02
  5. Step 5: Solve for x
    x = 7,868,880.02/3,141.60
  6. Step 6: Final answer
    x = 2,504.74

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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.