Home / 6,860.78-10,307.58-4,400.40

Finding the Fourth Proportional to 6,860.78, 10,307.58 and 4,400.40

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Solution

The fourth proportional to 6,860.78, 10,307.58 and 4,400.40 is: 6,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.78 : 10,307.58 = 4,400.40 : x
  2. Step 2: Convert to fraction form
    6,860.78/10,307.58 = 4,400.40/x
  3. Step 3: Cross multiply
    6,860.78x = 10,307.58 × 4,400.40
  4. Step 4: Simplify right side
    6,860.78x = 45,357,475.03
  5. Step 5: Solve for x
    x = 45,357,475.03/6,860.78
  6. Step 6: Final answer
    x = 6,611.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.