Home / 2,302.31-3,445.35-1,981.55

Finding the Fourth Proportional to 2,302.31, 3,445.35 and 1,981.55

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Solution

The fourth proportional to 2,302.31, 3,445.35 and 1,981.55 is: 2,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.31 : 3,445.35 = 1,981.55 : x
  2. Step 2: Convert to fraction form
    2,302.31/3,445.35 = 1,981.55/x
  3. Step 3: Cross multiply
    2,302.31x = 3,445.35 × 1,981.55
  4. Step 4: Simplify right side
    2,302.31x = 6,827,116.07
  5. Step 5: Solve for x
    x = 6,827,116.07/2,302.31
  6. Step 6: Final answer
    x = 2,965.34

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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.