Home / 4,428.17-6,640.70-1,307.35

Finding the Fourth Proportional to 4,428.17, 6,640.70 and 1,307.35

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Solution

The fourth proportional to 4,428.17, 6,640.70 and 1,307.35 is: 1,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.17 : 6,640.70 = 1,307.35 : x
  2. Step 2: Convert to fraction form
    4,428.17/6,640.70 = 1,307.35/x
  3. Step 3: Cross multiply
    4,428.17x = 6,640.70 × 1,307.35
  4. Step 4: Simplify right side
    4,428.17x = 8,681,719.15
  5. Step 5: Solve for x
    x = 8,681,719.15/4,428.17
  6. Step 6: Final answer
    x = 1,960.57

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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.