Home / 2,845.49-4,275.21-2,688.14

Finding the Fourth Proportional to 2,845.49, 4,275.21 and 2,688.14

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Solution

The fourth proportional to 2,845.49, 4,275.21 and 2,688.14 is: 4,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.49 : 4,275.21 = 2,688.14 : x
  2. Step 2: Convert to fraction form
    2,845.49/4,275.21 = 2,688.14/x
  3. Step 3: Cross multiply
    2,845.49x = 4,275.21 × 2,688.14
  4. Step 4: Simplify right side
    2,845.49x = 11,492,341.63
  5. Step 5: Solve for x
    x = 11,492,341.63/2,845.49
  6. Step 6: Final answer
    x = 4,038.80

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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.