Home / 2,445.19-3,374.36-1,397.25

Finding the Fourth Proportional to 2,445.19, 3,374.36 and 1,397.25

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Solution

The fourth proportional to 2,445.19, 3,374.36 and 1,397.25 is: 1,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.19 : 3,374.36 = 1,397.25 : x
  2. Step 2: Convert to fraction form
    2,445.19/3,374.36 = 1,397.25/x
  3. Step 3: Cross multiply
    2,445.19x = 3,374.36 × 1,397.25
  4. Step 4: Simplify right side
    2,445.19x = 4,714,822.76
  5. Step 5: Solve for x
    x = 4,714,822.76/2,445.19
  6. Step 6: Final answer
    x = 1,928.21

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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.