Home / 7,145.10-9,859.06-4,490.63

Finding the Fourth Proportional to 7,145.10, 9,859.06 and 4,490.63

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Solution

The fourth proportional to 7,145.10, 9,859.06 and 4,490.63 is: 6,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.10 : 9,859.06 = 4,490.63 : x
  2. Step 2: Convert to fraction form
    7,145.10/9,859.06 = 4,490.63/x
  3. Step 3: Cross multiply
    7,145.10x = 9,859.06 × 4,490.63
  4. Step 4: Simplify right side
    7,145.10x = 44,273,330.09
  5. Step 5: Solve for x
    x = 44,273,330.09/7,145.10
  6. Step 6: Final answer
    x = 6,196.32

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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.