Home / 2,053.77-2,831.49-1,515.12

Finding the Fourth Proportional to 2,053.77, 2,831.49 and 1,515.12

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Solution

The fourth proportional to 2,053.77, 2,831.49 and 1,515.12 is: 2,088.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.77 : 2,831.49 = 1,515.12 : x
  2. Step 2: Convert to fraction form
    2,053.77/2,831.49 = 1,515.12/x
  3. Step 3: Cross multiply
    2,053.77x = 2,831.49 × 1,515.12
  4. Step 4: Simplify right side
    2,053.77x = 4,290,047.13
  5. Step 5: Solve for x
    x = 4,290,047.13/2,053.77
  6. Step 6: Final answer
    x = 2,088.86

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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.