Home / 7,890.57-10,888.49-4,353.81

Finding the Fourth Proportional to 7,890.57, 10,888.49 and 4,353.81

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Solution

The fourth proportional to 7,890.57, 10,888.49 and 4,353.81 is: 6,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.57 : 10,888.49 = 4,353.81 : x
  2. Step 2: Convert to fraction form
    7,890.57/10,888.49 = 4,353.81/x
  3. Step 3: Cross multiply
    7,890.57x = 10,888.49 × 4,353.81
  4. Step 4: Simplify right side
    7,890.57x = 47,406,416.65
  5. Step 5: Solve for x
    x = 47,406,416.65/7,890.57
  6. Step 6: Final answer
    x = 6,007.98

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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.