Home / 6,970.89-9,615.61-4,136.40

Finding the Fourth Proportional to 6,970.89, 9,615.61 and 4,136.40

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Solution

The fourth proportional to 6,970.89, 9,615.61 and 4,136.40 is: 5,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.89 : 9,615.61 = 4,136.40 : x
  2. Step 2: Convert to fraction form
    6,970.89/9,615.61 = 4,136.40/x
  3. Step 3: Cross multiply
    6,970.89x = 9,615.61 × 4,136.40
  4. Step 4: Simplify right side
    6,970.89x = 39,773,988.52
  5. Step 5: Solve for x
    x = 39,773,988.52/6,970.89
  6. Step 6: Final answer
    x = 5,705.73

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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.