Home / 7,085.89-9,776.93-4,399.28

Finding the Fourth Proportional to 7,085.89, 9,776.93 and 4,399.28

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Solution

The fourth proportional to 7,085.89, 9,776.93 and 4,399.28 is: 6,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.89 : 9,776.93 = 4,399.28 : x
  2. Step 2: Convert to fraction form
    7,085.89/9,776.93 = 4,399.28/x
  3. Step 3: Cross multiply
    7,085.89x = 9,776.93 × 4,399.28
  4. Step 4: Simplify right side
    7,085.89x = 43,011,430.61
  5. Step 5: Solve for x
    x = 43,011,430.61/7,085.89
  6. Step 6: Final answer
    x = 6,070.02

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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.