Home / 1,457.03-2,185.55-417.05

Finding the Fourth Proportional to 1,457.03, 2,185.55 and 417.05

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Solution

The fourth proportional to 1,457.03, 2,185.55 and 417.05 is: 625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.03 : 2,185.55 = 417.05 : x
  2. Step 2: Convert to fraction form
    1,457.03/2,185.55 = 417.05/x
  3. Step 3: Cross multiply
    1,457.03x = 2,185.55 × 417.05
  4. Step 4: Simplify right side
    1,457.03x = 911,483.63
  5. Step 5: Solve for x
    x = 911,483.63/1,457.03
  6. Step 6: Final answer
    x = 625.58

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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.