Home / 7,185.99-9,916.56-4,042.16

Finding the Fourth Proportional to 7,185.99, 9,916.56 and 4,042.16

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Solution

The fourth proportional to 7,185.99, 9,916.56 and 4,042.16 is: 5,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.99 : 9,916.56 = 4,042.16 : x
  2. Step 2: Convert to fraction form
    7,185.99/9,916.56 = 4,042.16/x
  3. Step 3: Cross multiply
    7,185.99x = 9,916.56 × 4,042.16
  4. Step 4: Simplify right side
    7,185.99x = 40,084,322.17
  5. Step 5: Solve for x
    x = 40,084,322.17/7,185.99
  6. Step 6: Final answer
    x = 5,578.12

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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.