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Finding the Fourth Proportional to 2,708.55, 3,737.75 and 1,513.55

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Solution

The fourth proportional to 2,708.55, 3,737.75 and 1,513.55 is: 2,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.55 : 3,737.75 = 1,513.55 : x
  2. Step 2: Convert to fraction form
    2,708.55/3,737.75 = 1,513.55/x
  3. Step 3: Cross multiply
    2,708.55x = 3,737.75 × 1,513.55
  4. Step 4: Simplify right side
    2,708.55x = 5,657,271.51
  5. Step 5: Solve for x
    x = 5,657,271.51/2,708.55
  6. Step 6: Final answer
    x = 2,088.67

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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.