Home / 7,880.29-10,867.64-5,223.08

Finding the Fourth Proportional to 7,880.29, 10,867.64 and 5,223.08

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Solution

The fourth proportional to 7,880.29, 10,867.64 and 5,223.08 is: 7,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.29 : 10,867.64 = 5,223.08 : x
  2. Step 2: Convert to fraction form
    7,880.29/10,867.64 = 5,223.08/x
  3. Step 3: Cross multiply
    7,880.29x = 10,867.64 × 5,223.08
  4. Step 4: Simplify right side
    7,880.29x = 56,762,554.18
  5. Step 5: Solve for x
    x = 56,762,554.18/7,880.29
  6. Step 6: Final answer
    x = 7,203.11

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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.