Finding the Fourth Proportional to 2,891,981.29, 3,990,022.17 and 1,668,122.74
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Solution
The fourth proportional to 2,891,981.29, 3,990,022.17 and 1,668,122.74 is: 2,301,483.32
Step by Step Solution
- Step 1: Write the proportion equation
2,891,981.29 : 3,990,022.17 = 1,668,122.74 : x - Step 2: Convert to fraction form
2,891,981.29/3,990,022.17 = 1,668,122.74/x - Step 3: Cross multiply
2,891,981.29x = 3,990,022.17 × 1,668,122.74 - Step 4: Simplify right side
2,891,981.29x = 6,655,846,714,881.15 - Step 5: Solve for x
x = 6,655,846,714,881.15/2,891,981.29 - Step 6: Final answer
x = 2,301,483.32
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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.