Home / 7,085.84-10,631.64-3,579.12

Finding the Fourth Proportional to 7,085.84, 10,631.64 and 3,579.12

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Solution

The fourth proportional to 7,085.84, 10,631.64 and 3,579.12 is: 5,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.84 : 10,631.64 = 3,579.12 : x
  2. Step 2: Convert to fraction form
    7,085.84/10,631.64 = 3,579.12/x
  3. Step 3: Cross multiply
    7,085.84x = 10,631.64 × 3,579.12
  4. Step 4: Simplify right side
    7,085.84x = 38,051,915.36
  5. Step 5: Solve for x
    x = 38,051,915.36/7,085.84
  6. Step 6: Final answer
    x = 5,370.13

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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.