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Finding the Fourth Proportional to 4,907.79, 7,312.05 and 4,659.93

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Solution

The fourth proportional to 4,907.79, 7,312.05 and 4,659.93 is: 6,942.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.79 : 7,312.05 = 4,659.93 : x
  2. Step 2: Convert to fraction form
    4,907.79/7,312.05 = 4,659.93/x
  3. Step 3: Cross multiply
    4,907.79x = 7,312.05 × 4,659.93
  4. Step 4: Simplify right side
    4,907.79x = 34,073,641.16
  5. Step 5: Solve for x
    x = 34,073,641.16/4,907.79
  6. Step 6: Final answer
    x = 6,942.77

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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.