Home / 1,135.21-1,566.14-692.35

Finding the Fourth Proportional to 1,135.21, 1,566.14 and 692.35

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Solution

The fourth proportional to 1,135.21, 1,566.14 and 692.35 is: 955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.21 : 1,566.14 = 692.35 : x
  2. Step 2: Convert to fraction form
    1,135.21/1,566.14 = 692.35/x
  3. Step 3: Cross multiply
    1,135.21x = 1,566.14 × 692.35
  4. Step 4: Simplify right side
    1,135.21x = 1,084,305.74
  5. Step 5: Solve for x
    x = 1,084,305.74/1,135.21
  6. Step 6: Final answer
    x = 955.16

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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.