Home / 2,802.20-4,207.35-2,113.70

Finding the Fourth Proportional to 2,802.20, 4,207.35 and 2,113.70

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Solution

The fourth proportional to 2,802.20, 4,207.35 and 2,113.70 is: 3,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.20 : 4,207.35 = 2,113.70 : x
  2. Step 2: Convert to fraction form
    2,802.20/4,207.35 = 2,113.70/x
  3. Step 3: Cross multiply
    2,802.20x = 4,207.35 × 2,113.70
  4. Step 4: Simplify right side
    2,802.20x = 8,893,075.70
  5. Step 5: Solve for x
    x = 8,893,075.70/2,802.20
  6. Step 6: Final answer
    x = 3,173.60

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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.