Home / 6,312.58-8,711.43-3,480.07

Finding the Fourth Proportional to 6,312.58, 8,711.43 and 3,480.07

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Solution

The fourth proportional to 6,312.58, 8,711.43 and 3,480.07 is: 4,802.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.58 : 8,711.43 = 3,480.07 : x
  2. Step 2: Convert to fraction form
    6,312.58/8,711.43 = 3,480.07/x
  3. Step 3: Cross multiply
    6,312.58x = 8,711.43 × 3,480.07
  4. Step 4: Simplify right side
    6,312.58x = 30,316,386.20
  5. Step 5: Solve for x
    x = 30,316,386.20/6,312.58
  6. Step 6: Final answer
    x = 4,802.53

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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.