Home / 5,085.48-7,013.70-3,315.72

Finding the Fourth Proportional to 5,085.48, 7,013.70 and 3,315.72

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Solution

The fourth proportional to 5,085.48, 7,013.70 and 3,315.72 is: 4,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.48 : 7,013.70 = 3,315.72 : x
  2. Step 2: Convert to fraction form
    5,085.48/7,013.70 = 3,315.72/x
  3. Step 3: Cross multiply
    5,085.48x = 7,013.70 × 3,315.72
  4. Step 4: Simplify right side
    5,085.48x = 23,255,465.36
  5. Step 5: Solve for x
    x = 23,255,465.36/5,085.48
  6. Step 6: Final answer
    x = 4,572.91

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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.