Home / 7,551.85-11,320.79-2,870.45

Finding the Fourth Proportional to 7,551.85, 11,320.79 and 2,870.45

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Solution

The fourth proportional to 7,551.85, 11,320.79 and 2,870.45 is: 4,303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.85 : 11,320.79 = 2,870.45 : x
  2. Step 2: Convert to fraction form
    7,551.85/11,320.79 = 2,870.45/x
  3. Step 3: Cross multiply
    7,551.85x = 11,320.79 × 2,870.45
  4. Step 4: Simplify right side
    7,551.85x = 32,495,775.61
  5. Step 5: Solve for x
    x = 32,495,775.61/7,551.85
  6. Step 6: Final answer
    x = 4,303.02

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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.