Home / 2,445.15-3,374.28-1,397.19

Finding the Fourth Proportional to 2,445.15, 3,374.28 and 1,397.19

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Solution

The fourth proportional to 2,445.15, 3,374.28 and 1,397.19 is: 1,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.15 : 3,374.28 = 1,397.19 : x
  2. Step 2: Convert to fraction form
    2,445.15/3,374.28 = 1,397.19/x
  3. Step 3: Cross multiply
    2,445.15x = 3,374.28 × 1,397.19
  4. Step 4: Simplify right side
    2,445.15x = 4,714,510.27
  5. Step 5: Solve for x
    x = 4,714,510.27/2,445.15
  6. Step 6: Final answer
    x = 1,928.11

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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.