Home / 2,637.50-3,639.80-1,707.62

Finding the Fourth Proportional to 2,637.50, 3,639.80 and 1,707.62

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Solution

The fourth proportional to 2,637.50, 3,639.80 and 1,707.62 is: 2,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.50 : 3,639.80 = 1,707.62 : x
  2. Step 2: Convert to fraction form
    2,637.50/3,639.80 = 1,707.62/x
  3. Step 3: Cross multiply
    2,637.50x = 3,639.80 × 1,707.62
  4. Step 4: Simplify right side
    2,637.50x = 6,215,395.28
  5. Step 5: Solve for x
    x = 6,215,395.28/2,637.50
  6. Step 6: Final answer
    x = 2,356.55

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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.