Home / 1,831.14-2,527.29-1,390.50

Finding the Fourth Proportional to 1,831.14, 2,527.29 and 1,390.50

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Solution

The fourth proportional to 1,831.14, 2,527.29 and 1,390.50 is: 1,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.14 : 2,527.29 = 1,390.50 : x
  2. Step 2: Convert to fraction form
    1,831.14/2,527.29 = 1,390.50/x
  3. Step 3: Cross multiply
    1,831.14x = 2,527.29 × 1,390.50
  4. Step 4: Simplify right side
    1,831.14x = 3,514,196.75
  5. Step 5: Solve for x
    x = 3,514,196.75/1,831.14
  6. Step 6: Final answer
    x = 1,919.13

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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.