Home / 2,969.17-4,457.40-1,878.10

Finding the Fourth Proportional to 2,969.17, 4,457.40 and 1,878.10

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Solution

The fourth proportional to 2,969.17, 4,457.40 and 1,878.10 is: 2,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.17 : 4,457.40 = 1,878.10 : x
  2. Step 2: Convert to fraction form
    2,969.17/4,457.40 = 1,878.10/x
  3. Step 3: Cross multiply
    2,969.17x = 4,457.40 × 1,878.10
  4. Step 4: Simplify right side
    2,969.17x = 8,371,442.94
  5. Step 5: Solve for x
    x = 8,371,442.94/2,969.17
  6. Step 6: Final answer
    x = 2,819.46

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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.