Home / 7,069.57-9,756.35-4,085.80

Finding the Fourth Proportional to 7,069.57, 9,756.35 and 4,085.80

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Solution

The fourth proportional to 7,069.57, 9,756.35 and 4,085.80 is: 5,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.57 : 9,756.35 = 4,085.80 : x
  2. Step 2: Convert to fraction form
    7,069.57/9,756.35 = 4,085.80/x
  3. Step 3: Cross multiply
    7,069.57x = 9,756.35 × 4,085.80
  4. Step 4: Simplify right side
    7,069.57x = 39,862,474.40
  5. Step 5: Solve for x
    x = 39,862,474.40/7,069.57
  6. Step 6: Final answer
    x = 5,638.60

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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.