Home / 1,430.16-2,143.44-607.47

Finding the Fourth Proportional to 1,430.16, 2,143.44 and 607.47

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Solution

The fourth proportional to 1,430.16, 2,143.44 and 607.47 is: 910.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.16 : 2,143.44 = 607.47 : x
  2. Step 2: Convert to fraction form
    1,430.16/2,143.44 = 607.47/x
  3. Step 3: Cross multiply
    1,430.16x = 2,143.44 × 607.47
  4. Step 4: Simplify right side
    1,430.16x = 1,302,075.50
  5. Step 5: Solve for x
    x = 1,302,075.50/1,430.16
  6. Step 6: Final answer
    x = 910.44

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1.5x scale

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.