Home / 4,290.22-6,430.55-1,946.71

Finding the Fourth Proportional to 4,290.22, 6,430.55 and 1,946.71

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Solution

The fourth proportional to 4,290.22, 6,430.55 and 1,946.71 is: 2,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.22 : 6,430.55 = 1,946.71 : x
  2. Step 2: Convert to fraction form
    4,290.22/6,430.55 = 1,946.71/x
  3. Step 3: Cross multiply
    4,290.22x = 6,430.55 × 1,946.71
  4. Step 4: Simplify right side
    4,290.22x = 12,518,390.18
  5. Step 5: Solve for x
    x = 12,518,390.18/4,290.22
  6. Step 6: Final answer
    x = 2,917.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.