Home / 1,897.34-2,831.95-1,780.47

Finding the Fourth Proportional to 1,897.34, 2,831.95 and 1,780.47

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Solution

The fourth proportional to 1,897.34, 2,831.95 and 1,780.47 is: 2,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.34 : 2,831.95 = 1,780.47 : x
  2. Step 2: Convert to fraction form
    1,897.34/2,831.95 = 1,780.47/x
  3. Step 3: Cross multiply
    1,897.34x = 2,831.95 × 1,780.47
  4. Step 4: Simplify right side
    1,897.34x = 5,042,204.24
  5. Step 5: Solve for x
    x = 5,042,204.24/1,897.34
  6. Step 6: Final answer
    x = 2,657.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.