Home / 2,637.15-3,639.18-1,458.21

Finding the Fourth Proportional to 2,637.15, 3,639.18 and 1,458.21

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Solution

The fourth proportional to 2,637.15, 3,639.18 and 1,458.21 is: 2,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.15 : 3,639.18 = 1,458.21 : x
  2. Step 2: Convert to fraction form
    2,637.15/3,639.18 = 1,458.21/x
  3. Step 3: Cross multiply
    2,637.15x = 3,639.18 × 1,458.21
  4. Step 4: Simplify right side
    2,637.15x = 5,306,688.67
  5. Step 5: Solve for x
    x = 5,306,688.67/2,637.15
  6. Step 6: Final answer
    x = 2,012.28

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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.