Home / 7,920.04-10,928.36-4,382.57

Finding the Fourth Proportional to 7,920.04, 10,928.36 and 4,382.57

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Solution

The fourth proportional to 7,920.04, 10,928.36 and 4,382.57 is: 6,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.04 : 10,928.36 = 4,382.57 : x
  2. Step 2: Convert to fraction form
    7,920.04/10,928.36 = 4,382.57/x
  3. Step 3: Cross multiply
    7,920.04x = 10,928.36 × 4,382.57
  4. Step 4: Simplify right side
    7,920.04x = 47,894,280.77
  5. Step 5: Solve for x
    x = 47,894,280.77/7,920.04
  6. Step 6: Final answer
    x = 6,047.23

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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.