Home / 1,617.36-2,231.13-1,395.93

Finding the Fourth Proportional to 1,617.36, 2,231.13 and 1,395.93

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Solution

The fourth proportional to 1,617.36, 2,231.13 and 1,395.93 is: 1,925.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.36 : 2,231.13 = 1,395.93 : x
  2. Step 2: Convert to fraction form
    1,617.36/2,231.13 = 1,395.93/x
  3. Step 3: Cross multiply
    1,617.36x = 2,231.13 × 1,395.93
  4. Step 4: Simplify right side
    1,617.36x = 3,114,501.30
  5. Step 5: Solve for x
    x = 3,114,501.30/1,617.36
  6. Step 6: Final answer
    x = 1,925.67

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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.