Home / 1,909.07-2,633.53-1,646.63

Finding the Fourth Proportional to 1,909.07, 2,633.53 and 1,646.63

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Solution

The fourth proportional to 1,909.07, 2,633.53 and 1,646.63 is: 2,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.07 : 2,633.53 = 1,646.63 : x
  2. Step 2: Convert to fraction form
    1,909.07/2,633.53 = 1,646.63/x
  3. Step 3: Cross multiply
    1,909.07x = 2,633.53 × 1,646.63
  4. Step 4: Simplify right side
    1,909.07x = 4,336,449.50
  5. Step 5: Solve for x
    x = 4,336,449.50/1,909.07
  6. Step 6: Final answer
    x = 2,271.50

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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.