Home / 7,085.73-9,780.18-4,846.80

Finding the Fourth Proportional to 7,085.73, 9,780.18 and 4,846.80

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Solution

The fourth proportional to 7,085.73, 9,780.18 and 4,846.80 is: 6,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.73 : 9,780.18 = 4,846.80 : x
  2. Step 2: Convert to fraction form
    7,085.73/9,780.18 = 4,846.80/x
  3. Step 3: Cross multiply
    7,085.73x = 9,780.18 × 4,846.80
  4. Step 4: Simplify right side
    7,085.73x = 47,402,576.42
  5. Step 5: Solve for x
    x = 47,402,576.42/7,085.73
  6. Step 6: Final answer
    x = 6,689.86

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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.