Home / 2,915.21-4,024.46-1,854.05

Finding the Fourth Proportional to 2,915.21, 4,024.46 and 1,854.05

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Solution

The fourth proportional to 2,915.21, 4,024.46 and 1,854.05 is: 2,559.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.21 : 4,024.46 = 1,854.05 : x
  2. Step 2: Convert to fraction form
    2,915.21/4,024.46 = 1,854.05/x
  3. Step 3: Cross multiply
    2,915.21x = 4,024.46 × 1,854.05
  4. Step 4: Simplify right side
    2,915.21x = 7,461,534.58
  5. Step 5: Solve for x
    x = 7,461,534.58/2,915.21
  6. Step 6: Final answer
    x = 2,559.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.