Home / 2,848.90-3,931.05-1,729.63

Finding the Fourth Proportional to 2,848.90, 3,931.05 and 1,729.63

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Solution

The fourth proportional to 2,848.90, 3,931.05 and 1,729.63 is: 2,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.90 : 3,931.05 = 1,729.63 : x
  2. Step 2: Convert to fraction form
    2,848.90/3,931.05 = 1,729.63/x
  3. Step 3: Cross multiply
    2,848.90x = 3,931.05 × 1,729.63
  4. Step 4: Simplify right side
    2,848.90x = 6,799,262.01
  5. Step 5: Solve for x
    x = 6,799,262.01/2,848.90
  6. Step 6: Final answer
    x = 2,386.63

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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.