Home / 2,880.21-4,320.11-1,030.98

Finding the Fourth Proportional to 2,880.21, 4,320.11 and 1,030.98

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Solution

The fourth proportional to 2,880.21, 4,320.11 and 1,030.98 is: 1,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.21 : 4,320.11 = 1,030.98 : x
  2. Step 2: Convert to fraction form
    2,880.21/4,320.11 = 1,030.98/x
  3. Step 3: Cross multiply
    2,880.21x = 4,320.11 × 1,030.98
  4. Step 4: Simplify right side
    2,880.21x = 4,453,949.59
  5. Step 5: Solve for x
    x = 4,453,949.59/2,880.21
  6. Step 6: Final answer
    x = 1,546.40

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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.