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Finding the Fourth Proportional to 6,875.63, 10,313.64 and 1,681.50

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Solution

The fourth proportional to 6,875.63, 10,313.64 and 1,681.50 is: 2,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.63 : 10,313.64 = 1,681.50 : x
  2. Step 2: Convert to fraction form
    6,875.63/10,313.64 = 1,681.50/x
  3. Step 3: Cross multiply
    6,875.63x = 10,313.64 × 1,681.50
  4. Step 4: Simplify right side
    6,875.63x = 17,342,385.66
  5. Step 5: Solve for x
    x = 17,342,385.66/6,875.63
  6. Step 6: Final answer
    x = 2,522.30

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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.