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Finding the Fourth Proportional to 5,340.84, 8,011.47 and 1,642.74

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Solution

The fourth proportional to 5,340.84, 8,011.47 and 1,642.74 is: 2,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.84 : 8,011.47 = 1,642.74 : x
  2. Step 2: Convert to fraction form
    5,340.84/8,011.47 = 1,642.74/x
  3. Step 3: Cross multiply
    5,340.84x = 8,011.47 × 1,642.74
  4. Step 4: Simplify right side
    5,340.84x = 13,160,762.23
  5. Step 5: Solve for x
    x = 13,160,762.23/5,340.84
  6. Step 6: Final answer
    x = 2,464.17

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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.