Home / 5,276.16-7,280.32-2,918.40

Finding the Fourth Proportional to 5,276.16, 7,280.32 and 2,918.40

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Solution

The fourth proportional to 5,276.16, 7,280.32 and 2,918.40 is: 4,026.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.16 : 7,280.32 = 2,918.40 : x
  2. Step 2: Convert to fraction form
    5,276.16/7,280.32 = 2,918.40/x
  3. Step 3: Cross multiply
    5,276.16x = 7,280.32 × 2,918.40
  4. Step 4: Simplify right side
    5,276.16x = 21,246,885.89
  5. Step 5: Solve for x
    x = 21,246,885.89/5,276.16
  6. Step 6: Final answer
    x = 4,026.96

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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.