Home / 3,570.13-4,928.10-2,688.49

Finding the Fourth Proportional to 3,570.13, 4,928.10 and 2,688.49

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Solution

The fourth proportional to 3,570.13, 4,928.10 and 2,688.49 is: 3,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.13 : 4,928.10 = 2,688.49 : x
  2. Step 2: Convert to fraction form
    3,570.13/4,928.10 = 2,688.49/x
  3. Step 3: Cross multiply
    3,570.13x = 4,928.10 × 2,688.49
  4. Step 4: Simplify right side
    3,570.13x = 13,249,147.57
  5. Step 5: Solve for x
    x = 13,249,147.57/3,570.13
  6. Step 6: Final answer
    x = 3,711.11

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1.5x scale

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.