Home / 1,637.46-2,445.35-1,438.74

Finding the Fourth Proportional to 1,637.46, 2,445.35 and 1,438.74

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Solution

The fourth proportional to 1,637.46, 2,445.35 and 1,438.74 is: 2,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.46 : 2,445.35 = 1,438.74 : x
  2. Step 2: Convert to fraction form
    1,637.46/2,445.35 = 1,438.74/x
  3. Step 3: Cross multiply
    1,637.46x = 2,445.35 × 1,438.74
  4. Step 4: Simplify right side
    1,637.46x = 3,518,215.67
  5. Step 5: Solve for x
    x = 3,518,215.67/1,637.46
  6. Step 6: Final answer
    x = 2,148.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.