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Finding the Fourth Proportional to 3,430.98, 4,734.72 and 1,859.06

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Solution

The fourth proportional to 3,430.98, 4,734.72 and 1,859.06 is: 2,565.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.98 : 4,734.72 = 1,859.06 : x
  2. Step 2: Convert to fraction form
    3,430.98/4,734.72 = 1,859.06/x
  3. Step 3: Cross multiply
    3,430.98x = 4,734.72 × 1,859.06
  4. Step 4: Simplify right side
    3,430.98x = 8,802,140.40
  5. Step 5: Solve for x
    x = 8,802,140.40/3,430.98
  6. Step 6: Final answer
    x = 2,565.49

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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.