Home / 7,890.29-10,888.55-4,353.51

Finding the Fourth Proportional to 7,890.29, 10,888.55 and 4,353.51

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Solution

The fourth proportional to 7,890.29, 10,888.55 and 4,353.51 is: 6,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.29 : 10,888.55 = 4,353.51 : x
  2. Step 2: Convert to fraction form
    7,890.29/10,888.55 = 4,353.51/x
  3. Step 3: Cross multiply
    7,890.29x = 10,888.55 × 4,353.51
  4. Step 4: Simplify right side
    7,890.29x = 47,403,458.94
  5. Step 5: Solve for x
    x = 47,403,458.94/7,890.29
  6. Step 6: Final answer
    x = 6,007.82

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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.