Home / 1,555.36-2,320.91-1,417.36

Finding the Fourth Proportional to 1,555.36, 2,320.91 and 1,417.36

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Solution

The fourth proportional to 1,555.36, 2,320.91 and 1,417.36 is: 2,114.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.36 : 2,320.91 = 1,417.36 : x
  2. Step 2: Convert to fraction form
    1,555.36/2,320.91 = 1,417.36/x
  3. Step 3: Cross multiply
    1,555.36x = 2,320.91 × 1,417.36
  4. Step 4: Simplify right side
    1,555.36x = 3,289,565.00
  5. Step 5: Solve for x
    x = 3,289,565.00/1,555.36
  6. Step 6: Final answer
    x = 2,114.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.