Home / 2,810.84-4,219.02-1,515.08

Finding the Fourth Proportional to 2,810.84, 4,219.02 and 1,515.08

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Solution

The fourth proportional to 2,810.84, 4,219.02 and 1,515.08 is: 2,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.84 : 4,219.02 = 1,515.08 : x
  2. Step 2: Convert to fraction form
    2,810.84/4,219.02 = 1,515.08/x
  3. Step 3: Cross multiply
    2,810.84x = 4,219.02 × 1,515.08
  4. Step 4: Simplify right side
    2,810.84x = 6,392,152.82
  5. Step 5: Solve for x
    x = 6,392,152.82/2,810.84
  6. Step 6: Final answer
    x = 2,274.11

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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.