Home / 1,619.96-2,235.90-1,307.30

Finding the Fourth Proportional to 1,619.96, 2,235.90 and 1,307.30

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Solution

The fourth proportional to 1,619.96, 2,235.90 and 1,307.30 is: 1,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.96 : 2,235.90 = 1,307.30 : x
  2. Step 2: Convert to fraction form
    1,619.96/2,235.90 = 1,307.30/x
  3. Step 3: Cross multiply
    1,619.96x = 2,235.90 × 1,307.30
  4. Step 4: Simplify right side
    1,619.96x = 2,922,985.79
  5. Step 5: Solve for x
    x = 2,922,985.79/1,619.96
  6. Step 6: Final answer
    x = 1,804.36

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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.