Home / 1,645.95-2,271.02-1,056.68

Finding the Fourth Proportional to 1,645.95, 2,271.02 and 1,056.68

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Solution

The fourth proportional to 1,645.95, 2,271.02 and 1,056.68 is: 1,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.95 : 2,271.02 = 1,056.68 : x
  2. Step 2: Convert to fraction form
    1,645.95/2,271.02 = 1,056.68/x
  3. Step 3: Cross multiply
    1,645.95x = 2,271.02 × 1,056.68
  4. Step 4: Simplify right side
    1,645.95x = 2,399,741.41
  5. Step 5: Solve for x
    x = 2,399,741.41/1,645.95
  6. Step 6: Final answer
    x = 1,457.97

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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.