Home / 2,948.76-4,420.40-1,307.12

Finding the Fourth Proportional to 2,948.76, 4,420.40 and 1,307.12

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Solution

The fourth proportional to 2,948.76, 4,420.40 and 1,307.12 is: 1,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.76 : 4,420.40 = 1,307.12 : x
  2. Step 2: Convert to fraction form
    2,948.76/4,420.40 = 1,307.12/x
  3. Step 3: Cross multiply
    2,948.76x = 4,420.40 × 1,307.12
  4. Step 4: Simplify right side
    2,948.76x = 5,777,964.61
  5. Step 5: Solve for x
    x = 5,777,964.61/2,948.76
  6. Step 6: Final answer
    x = 1,959.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.