Home / 2,390.48-3,298.28-1,831.58

Finding the Fourth Proportional to 2,390.48, 3,298.28 and 1,831.58

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Solution

The fourth proportional to 2,390.48, 3,298.28 and 1,831.58 is: 2,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.48 : 3,298.28 = 1,831.58 : x
  2. Step 2: Convert to fraction form
    2,390.48/3,298.28 = 1,831.58/x
  3. Step 3: Cross multiply
    2,390.48x = 3,298.28 × 1,831.58
  4. Step 4: Simplify right side
    2,390.48x = 6,041,063.68
  5. Step 5: Solve for x
    x = 6,041,063.68/2,390.48
  6. Step 6: Final answer
    x = 2,527.13

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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.