Home / 7,315.10-10,972.65-4,690.70

Finding the Fourth Proportional to 7,315.10, 10,972.65 and 4,690.70

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Solution

The fourth proportional to 7,315.10, 10,972.65 and 4,690.70 is: 7,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.10 : 10,972.65 = 4,690.70 : x
  2. Step 2: Convert to fraction form
    7,315.10/10,972.65 = 4,690.70/x
  3. Step 3: Cross multiply
    7,315.10x = 10,972.65 × 4,690.70
  4. Step 4: Simplify right side
    7,315.10x = 51,469,409.36
  5. Step 5: Solve for x
    x = 51,469,409.36/7,315.10
  6. Step 6: Final answer
    x = 7,036.05

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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.