Home / 3,430.60-4,734.63-1,938.58

Finding the Fourth Proportional to 3,430.60, 4,734.63 and 1,938.58

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Solution

The fourth proportional to 3,430.60, 4,734.63 and 1,938.58 is: 2,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.60 : 4,734.63 = 1,938.58 : x
  2. Step 2: Convert to fraction form
    3,430.60/4,734.63 = 1,938.58/x
  3. Step 3: Cross multiply
    3,430.60x = 4,734.63 × 1,938.58
  4. Step 4: Simplify right side
    3,430.60x = 9,178,459.03
  5. Step 5: Solve for x
    x = 9,178,459.03/3,430.60
  6. Step 6: Final answer
    x = 2,675.47

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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.