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Finding the Fourth Proportional to 3,460.79, 4,775.76 and 1,888.89

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Solution

The fourth proportional to 3,460.79, 4,775.76 and 1,888.89 is: 2,606.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.79 : 4,775.76 = 1,888.89 : x
  2. Step 2: Convert to fraction form
    3,460.79/4,775.76 = 1,888.89/x
  3. Step 3: Cross multiply
    3,460.79x = 4,775.76 × 1,888.89
  4. Step 4: Simplify right side
    3,460.79x = 9,020,867.40
  5. Step 5: Solve for x
    x = 9,020,867.40/3,460.79
  6. Step 6: Final answer
    x = 2,606.59

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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.