Home / 7,905.40-10,909.52-4,368.76

Finding the Fourth Proportional to 7,905.40, 10,909.52 and 4,368.76

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Solution

The fourth proportional to 7,905.40, 10,909.52 and 4,368.76 is: 6,028.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.40 : 10,909.52 = 4,368.76 : x
  2. Step 2: Convert to fraction form
    7,905.40/10,909.52 = 4,368.76/x
  3. Step 3: Cross multiply
    7,905.40x = 10,909.52 × 4,368.76
  4. Step 4: Simplify right side
    7,905.40x = 47,661,074.60
  5. Step 5: Solve for x
    x = 47,661,074.60/7,905.40
  6. Step 6: Final answer
    x = 6,028.93

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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.