Home / 2,445.56-3,374.76-1,397.60

Finding the Fourth Proportional to 2,445.56, 3,374.76 and 1,397.60

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Solution

The fourth proportional to 2,445.56, 3,374.76 and 1,397.60 is: 1,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.56 : 3,374.76 = 1,397.60 : x
  2. Step 2: Convert to fraction form
    2,445.56/3,374.76 = 1,397.60/x
  3. Step 3: Cross multiply
    2,445.56x = 3,374.76 × 1,397.60
  4. Step 4: Simplify right side
    2,445.56x = 4,716,564.58
  5. Step 5: Solve for x
    x = 4,716,564.58/2,445.56
  6. Step 6: Final answer
    x = 1,928.62

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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.