Home / 7,712.19-11,570.40-3,328.70

Finding the Fourth Proportional to 7,712.19, 11,570.40 and 3,328.70

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Solution

The fourth proportional to 7,712.19, 11,570.40 and 3,328.70 is: 4,993.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.19 : 11,570.40 = 3,328.70 : x
  2. Step 2: Convert to fraction form
    7,712.19/11,570.40 = 3,328.70/x
  3. Step 3: Cross multiply
    7,712.19x = 11,570.40 × 3,328.70
  4. Step 4: Simplify right side
    7,712.19x = 38,514,332.63
  5. Step 5: Solve for x
    x = 38,514,332.63/7,712.19
  6. Step 6: Final answer
    x = 4,993.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.