Home / 2,315.34-3,194.82-1,307.16

Finding the Fourth Proportional to 2,315.34, 3,194.82 and 1,307.16

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Solution

The fourth proportional to 2,315.34, 3,194.82 and 1,307.16 is: 1,803.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.34 : 3,194.82 = 1,307.16 : x
  2. Step 2: Convert to fraction form
    2,315.34/3,194.82 = 1,307.16/x
  3. Step 3: Cross multiply
    2,315.34x = 3,194.82 × 1,307.16
  4. Step 4: Simplify right side
    2,315.34x = 4,176,140.91
  5. Step 5: Solve for x
    x = 4,176,140.91/2,315.34
  6. Step 6: Final answer
    x = 1,803.68

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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.