Home / 3,430.16-5,120.14-2,946.32

Finding the Fourth Proportional to 3,430.16, 5,120.14 and 2,946.32

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Solution

The fourth proportional to 3,430.16, 5,120.14 and 2,946.32 is: 4,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.16 : 5,120.14 = 2,946.32 : x
  2. Step 2: Convert to fraction form
    3,430.16/5,120.14 = 2,946.32/x
  3. Step 3: Cross multiply
    3,430.16x = 5,120.14 × 2,946.32
  4. Step 4: Simplify right side
    3,430.16x = 15,085,570.88
  5. Step 5: Solve for x
    x = 15,085,570.88/3,430.16
  6. Step 6: Final answer
    x = 4,397.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.