Home / 7,280.10-10,913.47-2,347.20

Finding the Fourth Proportional to 7,280.10, 10,913.47 and 2,347.20

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Solution

The fourth proportional to 7,280.10, 10,913.47 and 2,347.20 is: 3,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.10 : 10,913.47 = 2,347.20 : x
  2. Step 2: Convert to fraction form
    7,280.10/10,913.47 = 2,347.20/x
  3. Step 3: Cross multiply
    7,280.10x = 10,913.47 × 2,347.20
  4. Step 4: Simplify right side
    7,280.10x = 25,616,090.92
  5. Step 5: Solve for x
    x = 25,616,090.92/7,280.10
  6. Step 6: Final answer
    x = 3,518.65

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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.