Home / 5,298.48-7,311.80-2,908.51

Finding the Fourth Proportional to 5,298.48, 7,311.80 and 2,908.51

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Solution

The fourth proportional to 5,298.48, 7,311.80 and 2,908.51 is: 4,013.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.48 : 7,311.80 = 2,908.51 : x
  2. Step 2: Convert to fraction form
    5,298.48/7,311.80 = 2,908.51/x
  3. Step 3: Cross multiply
    5,298.48x = 7,311.80 × 2,908.51
  4. Step 4: Simplify right side
    5,298.48x = 21,266,432.41
  5. Step 5: Solve for x
    x = 21,266,432.41/5,298.48
  6. Step 6: Final answer
    x = 4,013.69

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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.