Home / 4,870.40-7,301.12-1,948

Finding the Fourth Proportional to 4,870.40, 7,301.12 and 1,948

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Solution

The fourth proportional to 4,870.40, 7,301.12 and 1,948 is: 2,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.40 : 7,301.12 = 1,948 : x
  2. Step 2: Convert to fraction form
    4,870.40/7,301.12 = 1,948/x
  3. Step 3: Cross multiply
    4,870.40x = 7,301.12 × 1,948
  4. Step 4: Simplify right side
    4,870.40x = 14,222,581.76
  5. Step 5: Solve for x
    x = 14,222,581.76/4,870.40
  6. Step 6: Final answer
    x = 2,920.21

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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.