Home / 9,890.46-14,835.69-2,870.87

Finding the Fourth Proportional to 9,890.46, 14,835.69 and 2,870.87

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Solution

The fourth proportional to 9,890.46, 14,835.69 and 2,870.87 is: 4,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.46 : 14,835.69 = 2,870.87 : x
  2. Step 2: Convert to fraction form
    9,890.46/14,835.69 = 2,870.87/x
  3. Step 3: Cross multiply
    9,890.46x = 14,835.69 × 2,870.87
  4. Step 4: Simplify right side
    9,890.46x = 42,591,263.17
  5. Step 5: Solve for x
    x = 42,591,263.17/9,890.46
  6. Step 6: Final answer
    x = 4,306.30

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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.