Home / 7,070.42-9,756.73-4,085.77

Finding the Fourth Proportional to 7,070.42, 9,756.73 and 4,085.77

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Solution

The fourth proportional to 7,070.42, 9,756.73 and 4,085.77 is: 5,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.42 : 9,756.73 = 4,085.77 : x
  2. Step 2: Convert to fraction form
    7,070.42/9,756.73 = 4,085.77/x
  3. Step 3: Cross multiply
    7,070.42x = 9,756.73 × 4,085.77
  4. Step 4: Simplify right side
    7,070.42x = 39,863,754.73
  5. Step 5: Solve for x
    x = 39,863,754.73/7,070.42
  6. Step 6: Final answer
    x = 5,638.10

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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.