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Finding the Fourth Proportional to 1,602.95, 2,212.10 and 904.32

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Solution

The fourth proportional to 1,602.95, 2,212.10 and 904.32 is: 1,247.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.95 : 2,212.10 = 904.32 : x
  2. Step 2: Convert to fraction form
    1,602.95/2,212.10 = 904.32/x
  3. Step 3: Cross multiply
    1,602.95x = 2,212.10 × 904.32
  4. Step 4: Simplify right side
    1,602.95x = 2,000,441.75
  5. Step 5: Solve for x
    x = 2,000,441.75/1,602.95
  6. Step 6: Final answer
    x = 1,247.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.