Home / 2,776.51-3,831.56-1,657.49

Finding the Fourth Proportional to 2,776.51, 3,831.56 and 1,657.49

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Solution

The fourth proportional to 2,776.51, 3,831.56 and 1,657.49 is: 2,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.51 : 3,831.56 = 1,657.49 : x
  2. Step 2: Convert to fraction form
    2,776.51/3,831.56 = 1,657.49/x
  3. Step 3: Cross multiply
    2,776.51x = 3,831.56 × 1,657.49
  4. Step 4: Simplify right side
    2,776.51x = 6,350,772.38
  5. Step 5: Solve for x
    x = 6,350,772.38/2,776.51
  6. Step 6: Final answer
    x = 2,287.32

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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.