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Finding the Fourth Proportional to 3,259.02, 4,888.53 and 918.93

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Solution

The fourth proportional to 3,259.02, 4,888.53 and 918.93 is: 1,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.02 : 4,888.53 = 918.93 : x
  2. Step 2: Convert to fraction form
    3,259.02/4,888.53 = 918.93/x
  3. Step 3: Cross multiply
    3,259.02x = 4,888.53 × 918.93
  4. Step 4: Simplify right side
    3,259.02x = 4,492,216.87
  5. Step 5: Solve for x
    x = 4,492,216.87/3,259.02
  6. Step 6: Final answer
    x = 1,378.40

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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.