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Finding the Fourth Proportional to 1,875.04, 2,811.36 and 901.12

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Solution

The fourth proportional to 1,875.04, 2,811.36 and 901.12 is: 1,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.04 : 2,811.36 = 901.12 : x
  2. Step 2: Convert to fraction form
    1,875.04/2,811.36 = 901.12/x
  3. Step 3: Cross multiply
    1,875.04x = 2,811.36 × 901.12
  4. Step 4: Simplify right side
    1,875.04x = 2,533,372.72
  5. Step 5: Solve for x
    x = 2,533,372.72/1,875.04
  6. Step 6: Final answer
    x = 1,351.10

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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.