Home / 2,880.13-4,320.30-907.10

Finding the Fourth Proportional to 2,880.13, 4,320.30 and 907.10

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Solution

The fourth proportional to 2,880.13, 4,320.30 and 907.10 is: 1,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.13 : 4,320.30 = 907.10 : x
  2. Step 2: Convert to fraction form
    2,880.13/4,320.30 = 907.10/x
  3. Step 3: Cross multiply
    2,880.13x = 4,320.30 × 907.10
  4. Step 4: Simplify right side
    2,880.13x = 3,918,944.13
  5. Step 5: Solve for x
    x = 3,918,944.13/2,880.13
  6. Step 6: Final answer
    x = 1,360.68

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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.